Simulation of the in-flight background for HXMT/HE
文献类型：期刊论文
| 作者 | Zhang, Juan; Song, Li-Ming ; Xiong, Shao-Lin; Guan, Ju; Xie, Fei
|
| 刊名 | Astrophysics and Space Science
 |
| 出版日期 | 2015 |
| 卷号 | 360期号:2页码:47 |
| 关键词 | HXMT Geant4 Background Simulation |
| DOI | 10.1007/s10509-015-2559-1 |
| 英文摘要 | The Hard X-ray Modulation Telescope (HXMT) is a broad-band X-ray astronomical satellite from 1 to 250 keV. Understanding the X-ray background in detail will help to achieve a good performance of the instrument. In this work, we make use of the mass modeling technique to estimate the background of High Energy Telescope (HE) aboard HXMT. It consists of three steps. First, we built a complete geometric model of HXMT. Then based on the investigation about the space environment concerning HXMT low-earth orbit, in our simulation we considered cosmic rays, cosmic X-ray background (CXB), South Atlantic Anomaly (SAA) trapped particles, the albedo gamma, and neutrons from interaction of cosmic rays with the Earth's atmosphere. Finally, the Shielding Physics List supplied by Geant4 collaborations was adopted. According to our simulation, (1) the total background of HXMT/HE is about 540 count/s on average over 20-250 keV energy band after 100 days in orbit; (2) the delayed component caused by cosmic rays and SAA trapped particles dominates the full energy band of HXMT/HE; (3) some emission lines are prominent in the background continuum spectrum and will be used for inorbit calibration; (4) the estimated sensitivity is similar to 0.1 mCrab at 50 keV with an exposure of 10(6) s. |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000366632000013 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/282240]  |
| 专题 | 硬X射线调制望远镜卫星 |
| 推荐引用方式 GB/T 7714 | Zhang, Juan,Song, Li-Ming,Xiong, Shao-Lin,et al. Simulation of the in-flight background for HXMT/HE[J]. Astrophysics and Space Science,2015,360(2):47. |
| APA | Zhang, Juan,Song, Li-Ming,Xiong, Shao-Lin,Guan, Ju,&Xie, Fei.(2015).Simulation of the in-flight background for HXMT/HE.Astrophysics and Space Science,360(2),47. |
| MLA | Zhang, Juan,et al."Simulation of the in-flight background for HXMT/HE".Astrophysics and Space Science 360.2(2015):47. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。